#1D5B9A#1D5B9A

#1D5B9A is a mid, moderate cyan. Relative luminance 0.101; OKLCH L 46.6% C 0.120 H 252.3°. Best body text is #FFFFFF at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#1D5B9A
RGB	rgb(29, 91, 154)
HSL	hsl(210, 68%, 36%)
HSV	hsv(210, 81%, 60%)
CMYK	cmyk(81.2%, 40.9%, 0%, 39.6%)
CIE-LAB	lab(37.98, 4.00, -39.88)
CIE-LCH	lch(37.98, 40.08, 275.72°)
OKLab	oklab(46.59% -0.0363 -0.114)
OKLCH	oklch(46.59% 0.12 252.3)
XYZ	xyz(10.0783, 10.0753, 31.9791)
Luminance	0.1008 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5B9A #9A5C1D

analogous

#1D999A #1D5B9A #1D1D9A

triadic

#1D5B9A #9A1D5B #5B9A1D

tetradic

#1D5B9A #9A1D99 #9A5C1D #1D9A1D

square

#1D5B9A #9A1D99 #9A5C1D #1D9A1D

split-complementary

#1D5B9A #9A1D1D #999A1D

monochromatic

#0A1E33 #133D66 #1D5B9A #2779CE #5398DF

Accessibility & contrast

On white

6.96

#1D5B9A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#1D5B9A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D5B9A

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5B9A	#FFFFFF	#000000	##FFFFFF
##1D5B9A	1.00	6.96	3.02	6.96
#FFFFFF	6.96	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C609D

Deuteranopia (green-blind)

#285499

Tritanopia (blue-blind)

#006A73

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1d5b9a;
/* rgb */ color: rgb(29, 91, 154);
/* oklch */ color: oklch(46.6% 0.120 252.3);

Tailwind

colors: {
  custom: {
    50: '#6e88b8',
    500: '#1d5b9a',
    950: '#000000',
  },
}

SCSS

$custom: #1d5b9a;
$custom-light: #6e88b8;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5b9a",
  "rgb": {
    "r": 29,
    "g": 91,
    "b": 154
  },
  "hsl": {
    "h": 210.24,
    "s": 68.306,
    "l": 35.882
  },
  "oklch": {
    "l": 0.46588,
    "c": 0.11962,
    "h": 252.3
  },
  "luminance": 0.10076
}

Semantic roles & 50–950 ramp

primary

#1D5B9A

secondary

#C28A51

accent

#953DEB

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B11

muted

#7B7C80

Preview Lab

Preview with #1D5B9A

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →